Mixed-language automatic differentiation. (2nd November 2018)

• Record Type: Journal Article
• Authors: Pascual, Valérie; Hascoët, Laurent
• Is Part Of: Optimization methods and software. Volume 33:Number 4/6(2018)
• Page Start: 1192
• Page End: 1206
• Publication Date: 2018-11-02
• Subjects: Automatic Differentiation -- program transformation -- mixed-language -- interoperability -- program analysis; 68N20 -- 68N99; Mathematical optimization -- Periodicals; Algorithms -- Periodicals; 519.7
• DOI: 10.1080/10556788.2018.1435650
• Languages: English
• ISSNs: 1055-6788

Abstract

Abstract : As Automatic Differentiation (AD) usage is spreading to larger and more sophisticated applications, problems arise for codes that use several programming languages. This work describes the issues involved in interoperability between languages and focuses on the main issue which is parameter-passing. It describes the architecture of a source-transformation AD tool and the algorithms used to differentiate mixed-language codes. A language-independent internal representation enables the application of global analysis and strategies on the entire source code. Our goal is that the Tapenade AD tool differentiates codes that mix C and Fortran and generates efficient differentiated code using these strategies.